The Python Package Index or PyPI is the official third-party software repository for the Python programming language. Python developers intend of it to be a comprehensive catalog of all open source Python packages.[1] It is analogous to CPAN, the repository for Perl. Package managers such as EasyInstall, pip and PyPM use PyPI as the default source for packages and their dependencies.
During development and early use the index was called the Cheeseshop in reference to Monty Python's Cheese Shop sketch.